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Middle School Math
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1.  Certain mites in the arctic thrive at an average temperature of-20C. They also do well at temperatures of up to26C. What is the temperature range acceptable to these arctic mites?

2.  Lauren dried some plant roots in the oven. She found that the mass of the roots changed by-25%. The mass after drying was30grams. What was the mass before drying? Round your answer to the nearest whole number.

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4.  The melting point of trifluoroacetophenone is-40C. The melting point of 4-nitroacetophenone is81C. Another similar compound melts at-48C. What is the average melting point of the compounds?

5.  Robert prepares an ice bath to cool a beaker of reagents. It is rather warm in the room that day (27C), and the beaker begins to cool at a rate of-6C per minute. At that rate how long will it take the beaker to get to4C?

6.  James has not been too successful when running the quarterback sneak play for the Smallville football team this year. On six attempts, he has achieved the following results (in yards):-2,2,-5,-4,1, and0. What is his average yardage on the quarterback sneak? Round your answer to the nearest tenth.



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suscriptores de edHelper - Cree un imprimible nuevo
Clave también incluye las preguntas
La hoja de respuestas sólo da las respuestas
Sin clave de respuestas
Not a subscriber?  Sign up now for the subscriber materials!

Números enteros
Matemáticas
Middle School Math
Números enteros

This worksheet still contains English.
edHelper is working on the translation